135485078401 has 2 divisors, whose sum is σ = 135485078402. Its totient is φ = 135485078400.

The previous prime is 135485078299. The next prime is 135485078461. The reversal of 135485078401 is 104870584531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99089596225 + 36395482176 = 314785^2 + 190776^2 .

It is a cyclic number.

It is not a de Polignac number, because 135485078401 - 2²³ = 135476689793 is a prime.

It is not a weakly prime, because it can be changed into another prime (135485078461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67742539200 + 67742539201.

It is an arithmetic number, because the mean of its divisors is an integer number (67742539201).

Almost surely, 2^135485078401 is an apocalyptic number.

It is an amenable number.

135485078401 is a deficient number, since it is larger than the sum of its proper divisors (1).

135485078401 is an equidigital number, since it uses as much as digits as its factorization.

135485078401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 537600, while the sum is 46.

The spelling of 135485078401 in words is "one hundred thirty-five billion, four hundred eighty-five million, seventy-eight thousand, four hundred one".